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Karnataka Board PUCPUC Science 2nd PUC Class 12

Find out the role of microbes in the following: Soil - Biology

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Question

Find out the role of microbes in the following:

Soil

Answer in Brief

Solution

Microbes are highly useful in maintaining and restoring soil fertility. The fertility of the soil is determined not only by its chemical structure but also by the number and quality of beneficial bacteria present. Furthermore, if the soil's composition is inadequate and fertility is low, biologically derived elements are added to improve and maintain fertility. These materials are classified into two basic categories: waste and biofertilisers. Wastes are classified into three types: farmyard waste, compost, and green waste. Farmyard waste is the oldest dung known to human beings, consisting of farm animal excrement and plant remains, among other things, that are allowed to partially decompose with the help of soil micro-organisms. These microbes degrade complex organic waste into a dark, amorphous substance known as sludge, which plants can easily consume. Fertiliser dissolves the soil, improves aeration, and makes it grow better. Biofertilisers are micro-organisms that restore soil nutrients while maximising ecological advantages and reducing environmental dangers.

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Microbes as Biofertilizers
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Chapter 10: Microbes in Human Welfare - Exercises [Page 190]

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NCERT Biology [English] Class 12
Chapter 10 Microbes in Human Welfare
Exercises | Q 13.2 | Page 190

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